Systems and methods for compensating for temperature induced...

Details Systems and methods for compensating for temperature induced... Systems and methods for compensating for temperature induced...

2007-09-18

2007-09-18

Punnoose, Roy M. (Department: 2886)

Optics: measuring and testing

By shade or color

Trichromatic examination

C356S408000

Reexamination Certificate

active

11092674

ABSTRACT:
Systems and method provide compensation for temperature induced peak wavelength shift of LEDs is color parameter measuring systems that use a model to reconstruct target color parameter values from the reflectance values measured when the target is illuminated by LEDs. Several models may be constructed, with each model being trained at a unique temperature, resulting in a set of models that span the temperature range of interest. In real-time, the LED based color parameter measuring system measures the temperature and interpolates between the models to estimate the appropriate model to use at the temperature of interest. The estimated model is then used to perform the color parameter value estimation.

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